rodio jack backend – how to?

[microfx]

Hey!

I managed to build librespot with rodio but I cannot use it with jack.

That's the output. librespot_playback::audio_backend::rodio] Using Rodio sink with format S16 and cpal host: ALSAthis looks wrong, hm? Is there another config I need to check?

Feb 24 14:11:59 MiCROLABS-P3 systemd[1]: Started Raspotify.
Feb 24 14:11:59 MiCROLABS-P3 librespot[23822]: [2022-02-24T13:11:59Z INFO  librespot] librespot 0.3.1 616809b (Built on 2022-02-24, Build ID: 2ohmOrfb, Profile: release)
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]: [2022-02-24T13:12:00Z INFO  librespot_core::session] Connecting to AP "ap-gew1.spotify.com:4070"
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]: [2022-02-24T13:12:00Z INFO  librespot_core::session] Authenticated as "user" !
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]: [2022-02-24T13:12:00Z INFO  librespot_playback::mixer::softmixer] Mixing with softvol and volume control: Log(60.0)
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]: [2022-02-24T13:12:00Z INFO  librespot_playback::convert] Converting with ditherer: tpdf
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]: [2022-02-24T13:12:00Z INFO  librespot_playback::audio_backend::rodio] Using Rodio sink with format S16 and cpal host: ALSA
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]: [2022-02-24T13:12:00Z INFO  librespot_playback::audio_backend::rodio] Using audio device: default
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]: [2022-02-24T13:12:00Z INFO  librespot_core::session] Country: "DE"
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]: ALSA lib pcm_dmix.c:1108:(snd_pcm_dmix_open) unable to open slave
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]: thread '<unnamed>' panicked at 'called `Result::unwrap()` on an `Err` value: StreamError(DefaultStreamConfigError(DeviceNotAvailable))', playback/src/audio_backend/rodio.rs:178:53
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]: stack backtrace:
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:    0:   0x999620 - std::backtrace_rs::backtrace::libunwind::trace::h532c701585cd392d
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:    1:   0x999620 - std::backtrace_rs::backtrace::trace_unsynchronized::h15e96deae50ea7f1
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:    2:   0x999620 - std::sys_common::backtrace::_print_fmt::h2de65accbd58b3e4
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/sys_common/backtrace.rs:67:5
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:    3:   0x999620 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h85671ae76efc2464
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/sys_common/backtrace.rs:46:22
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:    4:   0x9c1454 - core::fmt::write::h57e38047c74956ea
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/core/src/fmt/mod.rs:1149:17
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:    5:   0x991cc0 - std::io::Write::write_fmt::hcccb69ae7e0e5712
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/io/mod.rs:1697:15
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:    6:   0x99b68c - std::sys_common::backtrace::_print::hedd1975fac8ef971
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/sys_common/backtrace.rs:49:5
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:    7:   0x99b68c - std::sys_common::backtrace::print::h271955abde78a83a
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/sys_common/backtrace.rs:36:9
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:    8:   0x99b68c - std::panicking::default_hook::{{closure}}::h1901391bc1a47fa7
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/panicking.rs:211:50
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:    9:   0x99b134 - std::panicking::default_hook::h76fa136e1f70a214
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/panicking.rs:228:9
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:   10:   0x99bd64 - std::panicking::rust_panic_with_hook::h51720dfc44e3b7d9
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/panicking.rs:606:17
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:   11:   0x99b840 - std::panicking::begin_panic_handler::{{closure}}::he47604371a389898
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/panicking.rs:502:13
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:   12:   0x999b90 - std::sys_common::backtrace::__rust_end_short_backtrace::h18b71b6ad5f9e064
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/sys_common/backtrace.rs:139:18
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:   13:   0x99b798 - rust_begin_unwind
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/panicking.rs:498:5
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:   14:   0x5261c0 - core::panicking::panic_fmt::h9db124518765ce19
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/core/src/panicking.rs:107:14
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:   15:   0x526294 - core::result::unwrap_failed::hd5176608923f89af
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/core/src/result.rs:1613:5
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:   16:   0x6a0468 - librespot_playback::audio_backend::rodio::open::hdd109a095229e5d6
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:   17:   0x69efc8 - librespot_playback::audio_backend::rodio::mk_rodio::h70f7dce122d0dd01
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:   18:   0x5d2e98 - std::sys_common::backtrace::__rust_begin_short_backtrace::h75043918b3fbf764
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:   19:   0x5be850 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h64d841c4ca0ba432
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:   20:   0x9a0c08 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hb88965a49e8ef6d9
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/alloc/src/boxed.rs:1694:9
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:   21:   0x9a0c08 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h3a9e9491476f36e5
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/alloc/src/boxed.rs:1694:9
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:   22:   0x9a0c08 - std::sys::unix::thread::Thread::new::thread_start::h83a6b2d187373076
Feb 24 14:12:00 MiCROLABS-P3 librespot[23822]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/sys/unix/thread.rs:106:17
Feb 24 14:12:21 MiCROLABS-P3 librespot[23822]: [2022-02-24T13:12:21Z ERROR librespot_playback::player] Player Commands Error: channel closed
Feb 24 14:12:26 MiCROLABS-P3 librespot[23822]: [2022-02-24T13:12:26Z ERROR librespot_playback::player] Player Commands Error: channel closed
Feb 24 14:12:27 MiCROLABS-P3 librespot[23822]: [2022-02-24T13:12:27Z ERROR librespot_playback::player] Player Commands Error: channel closed
Feb 24 14:12:28 MiCROLABS-P3 librespot[23822]: [2022-02-24T13:12:28Z ERROR librespot_playback::player] Player Commands Error: channel closed
Feb 24 14:12:28 MiCROLABS-P3 librespot[23822]: [2022-02-24T13:12:28Z ERROR librespot_playback::player] Player Commands Error: channel closed```

[roderickvd]

For any report please specify the full command line you are launching with. I think you will find that you are not using the right backend (Rodio instead of Jack-Rodio).

Out of interest why don’t you just use the native Jack backend?

[microfx]

For any report please specify the full command line you are launching with. I think you will find that you are not using the right backend (Rodio instead of Jack-Rodio).

Out of interest why don’t you just use the native Jack backend?

I have a DAC that is 48 kHz so I need to sample rate convert. Is rodiojack doing that out of the box for me?

Thanks for the tip – there was in the config another entry that did overwrite the arguments from my .service file.

Now I have a different error – no connection to the jack server.

Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]: [2022-02-24T18:20:29Z INFO  librespot_playback::mixer::softmixer] Mixing with softvol and volume control: Linear
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]: [2022-02-24T18:20:29Z INFO  librespot_core::session] Country: "DE"
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]: [2022-02-24T18:20:29Z INFO  librespot_playback::convert] Converting with ditherer: tpdf
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]: Cannot connect to server socket err = No such file or directory
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]: Cannot connect to server request channel
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]: jack server is not running or cannot be started
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]: JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]: Failed to open client because of error: ClientError(FAILURE | SERVER_FAILED)
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]: Cannot connect to server socket err = No such file or directory
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]: Cannot connect to server request channel
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]: jack server is not running or cannot be started
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]: JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]: Failed to open client because of error: ClientError(FAILURE | SERVER_FAILED)
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]: [2022-02-24T18:20:29Z INFO  librespot_playback::audio_backend::rodio] Using Rodio sink with format S16 and cpal host: JACK
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]: thread '<unnamed>' panicked at 'called `Result::unwrap()` on an `Err` value: NoDeviceAvailable', playback/src/audio_backend/rodio.rs:178:53
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]: stack backtrace:
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:    0:   0x9af620 - std::backtrace_rs::backtrace::libunwind::trace::h532c701585cd392d
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:    1:   0x9af620 - std::backtrace_rs::backtrace::trace_unsynchronized::h15e96deae50ea7f1
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:    2:   0x9af620 - std::sys_common::backtrace::_print_fmt::h2de65accbd58b3e4
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/sys_common/backtrace.rs:67:5
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:    3:   0x9af620 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h85671ae76efc2464
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/sys_common/backtrace.rs:46:22
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:    4:   0x9d7454 - core::fmt::write::h57e38047c74956ea
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/core/src/fmt/mod.rs:1149:17
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:    5:   0x9a7cc0 - std::io::Write::write_fmt::hcccb69ae7e0e5712
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/io/mod.rs:1697:15
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:    6:   0x9b168c - std::sys_common::backtrace::_print::hedd1975fac8ef971
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/sys_common/backtrace.rs:49:5
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:    7:   0x9b168c - std::sys_common::backtrace::print::h271955abde78a83a
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/sys_common/backtrace.rs:36:9
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:    8:   0x9b168c - std::panicking::default_hook::{{closure}}::h1901391bc1a47fa7
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/panicking.rs:211:50
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:    9:   0x9b1134 - std::panicking::default_hook::h76fa136e1f70a214
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/panicking.rs:228:9
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:   10:   0x9b1d64 - std::panicking::rust_panic_with_hook::h51720dfc44e3b7d9
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/panicking.rs:606:17
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:   11:   0x9b1840 - std::panicking::begin_panic_handler::{{closure}}::he47604371a389898
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/panicking.rs:502:13
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:   12:   0x9afb90 - std::sys_common::backtrace::__rust_end_short_backtrace::h18b71b6ad5f9e064
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/sys_common/backtrace.rs:139:18
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:   13:   0x9b1798 - rust_begin_unwind
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/panicking.rs:498:5
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:   14:   0x53c1c0 - core::panicking::panic_fmt::h9db124518765ce19
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/core/src/panicking.rs:107:14
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:   15:   0x53c294 - core::result::unwrap_failed::hd5176608923f89af
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/core/src/result.rs:1613:5
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:   16:   0x6b6468 - librespot_playback::audio_backend::rodio::open::hdd109a095229e5d6
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:   17:   0x6b508c - librespot_playback::audio_backend::rodio::mk_rodiojack::h8a10c20cfafa4f75
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:   18:   0x5e8e98 - std::sys_common::backtrace::__rust_begin_short_backtrace::h75043918b3fbf764
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:   19:   0x5d4850 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h64d841c4ca0ba432
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:   20:   0x9b6c08 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hb88965a49e8ef6d9
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/alloc/src/boxed.rs:1694:9
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:   21:   0x9b6c08 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h3a9e9491476f36e5
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/alloc/src/boxed.rs:1694:9
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:   22:   0x9b6c08 - std::sys::unix::thread::Thread::new::thread_start::h83a6b2d187373076
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]:                        at /rustc/db9d1b20bba1968c1ec1fc49616d4742c1725b4b/library/std/src/sys/unix/thread.rs:106:17
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]: [2022-02-24T18:20:29Z ERROR librespot_playback::player] Player Commands Error: channel closed
Feb 24 19:20:29 MiCROLABS-P3 librespot[8167]: [2022-02-24T18:20:29Z ERROR librespot_playback::player] Player Commands Error: channel closed
Feb 24 19:20:32 MiCROLABS-P3 librespot[8167]: [2022-02-24T18:20:32Z ERROR librespot_playback::player] Player Commands Error: channel closed
Feb 24 19:20:32 MiCROLABS-P3 librespot[8167]: [2022-02-24T18:20:32Z ERROR librespot_playback::player] Player Commands Error: channel closed
Feb 24 19:20:32 MiCROLABS-P3 librespot[8167]: [2022-02-24T18:20:32Z ERROR librespot_playback::player] Player Commands Error: channel closed
Feb 24 19:20:33 MiCROLABS-P3 librespot[8167]: [2022-02-24T18:20:33Z ERROR librespot_playback::player] Player Commands Error: channel closed
Feb 24 19:20:33 MiCROLABS-P3 librespot[8167]: [2022-02-24T18:20:33Z ERROR librespot_playback::player] Player Commands Error: channel closed
Feb 24 19:20:34 MiCROLABS-P3 librespot[8167]: [2022-02-24T18:20:34Z ERROR librespot_playback::player] Player Commands Error: channel closed
Feb 24 19:20:34 MiCROLABS-P3 librespot[8167]: [2022-02-24T18:20:34Z ERROR librespot_playback::player] Player Commands Error: channel closed
Feb 24 19:20:34 MiCROLABS-P3 librespot[8167]: [2022-02-24T18:20:34Z ERROR librespot_playback::player] Player Commands Error: channel closed
Feb 24 19:20:35 MiCROLABS-P3 librespot[8167]: [2022-02-24T18:20:35Z ERROR librespot_playback::player] Player Commands Error: channel closed

My .service file

[Unit]
Description=Raspotify
After=jack.target

[Service]
User=jack
Group=jack
Restart=always
RestartSec=10
PermissionsStartOnly=true
ExecStartPre=/bin/mkdir -m 0755 -p /var/cache/raspotify ; /bin/chown raspotify:raspotify /var/cache/raspotify
Environment="DEVICE_NAME=MiCROLABS-P3"
Environment="DEVICE_TYPE=pisound"
Environment="BITRATE=320"
Environment="CACHE_ARGS=--disable-audio-cache"
Environment="VOLUME_ARGS=--enable-volume-normalisation --volume-ctrl linear --initial-volume 100"
Environment="BACKEND_ARGS=--backend rodiojack"
Environment="DEVICE_TYPE=speaker"
Environment="OUTPUT=hw:1,0"
ExecStart=/usr/bin/librespot --name ${DEVICE_NAME} --device-type ${DEVICE_TYPE} $BACKEND_ARGS --bitrate ${BITRATE} $CACHE_ARGS $VOLUME_ARGS $OPTIONS
[Install]
WantedBy=multi-user.target

jack is my realtime audio user.. that's why I thought it would be a good idea to use that .. no idea if that's needed or now even a problem. Shairport-sync (also run as user jack as service) worked immediately with jack.

─8167 /usr/bin/librespot --name MiCROLABS-P3 --device-type speaker --backend rodiojack --bitrate 320 --disable-audio-cache --enable-volume-normalisation --volume-ctrl linear --initial-volume 100

this was now my start command.

EDIT: Solved! When I run that command as my normal user it works... hmm hehe guess there is something fishy with my .service file – something I don't understand.

[roderickvd]

To be a bit less cryptic you need to launch with --backend rodiojack

[microfx]

Okay made it work!

my service file:

[Unit]
Description=Raspotify
After=sound.target

[Service]
LimitRTPRIO=95
LimitMEMLOCK=infinity
Environment=JACK_NO_AUDIO_RESERVATION=1
Environment=JACK_PROMISCUOUS_SERVER=jack
User=jack
Group=jack
#ExecStartPre=/bin/mkdir -m 0755 -p /var/cache/raspotify ; /bin/chown raspotify:raspotify /var/cache/raspotify
Environment="DEVICE_NAME=MiCROLABS-P3"
Environment="DEVICE_TYPE=speaker"
Environment="BITRATE=320"
Environment="CACHE_ARGS=--disable-audio-cache"
Environment="VOLUME_ARGS=--enable-volume-normalisation --initial-volume 50"
Environment="BACKEND_ARGS=--backend rodiojack"
Environment="DEVICE_TYPE=speaker"
#EnvironmentFile=-/etc/default/raspotify
#Environment="OUTPUT=hw:1,0"
ExecStart=/usr/bin/librespot --name ${DEVICE_NAME} --device-type ${DEVICE_TYPE} $BACKEND_ARGS --bitrate ${BITRATE} $CACHE_ARGS $VOLUME_ARGS $OPTIONS
[Install]
WantedBy=multi-user.target

Thank you so much for your help!